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- Thu Mar 07, 2019 11:38 pm
- Forum: Technical
- Topic: Tube Tester
- Replies: 0
- Views: 21283
Tube Tester
I just bought a tube tester and was hoping to compare notes with another user. I have 4 Winged C EL34's from 1998 that have been used in my DSL100 since new. I thought after 20 years they would be going bad, but on the tester they all were good, with ratings of 9, 9, 10 and 11. I was wondering if so...